Method for cell access, indication method for cell access, and apparatus

Abstract

A method for cell access, an indication method for cell access, and an apparatus. The method for cell access comprises: a terminal device receives first information indicated by a network device; and the terminal device performs first processing on the basis of a first capability of the terminal device and / or the first information, wherein the first capability includes a capability indicating whether the terminal device supports a first characteristic and / or a capability that is supported by the terminal device and related to the first characteristic, the first characteristic comprises downlink discontinuous transmission and / or a long-period SSB, and the first processing is related to cell access.

Description

Method for cell access, indication method and device for cell access TECHNICAL FIELD

[0001] The present application relates to the field of communication. BACKGROUND

[0002] In the NR NTN (Non-Terrestrial Network) technology of 5G, a terminal device can access a wireless network by directly connecting with a satellite. The coverage of the wireless network provided by the satellite is related to the height of the satellite. The higher the height of the satellite, the larger the earth surface that can be covered.

[0003] FIG. 1 is a schematic diagram of the earth surface coverage of a satellite at a certain orbital height. In FIG. 1, it is assumed that the orbital height of the satellite is 600 km, and the minimum elevation angle of the terminal device is 30°. In this case, the coverage area of the satellite on the earth surface can reach 2,285,851 km 2 If such a wide area is covered at the same time, the total transmit power of the satellite needs to exceed at least 10 kW to meet the transmission requirement of a 5 MHz bandwidth. For satellites at higher orbits, the requirement for the total transmit power of the satellite will be higher. This is very difficult to achieve for satellites that rely on solar panels for power supply.

[0004] In the work of NR NTN on downlink coverage enhancement in 3GPP Release 19, a way of activating all beams of the satellite at different times is considered to solve the above power problem.

[0005] FIG. 2 is a schematic diagram of the coverage area of the beams of a satellite being activated on the earth surface. As shown in FIG. 2, in a certain time period, the transmit power of the satellite is concentrated on ensuring signal transmission on part of the beams of the satellite (the shaded beam), that is, the satellite can only provide NTN downlink service for the area corresponding to these beams (the shaded area). After the end of the certain time period, the power of the satellite can be concentrated on signal transmission on other beams, and so on. In this way, by using time division, the satellite can dynamically and flexibly allocate the total power to different beams to provide NTN downlink service for the areas within the footprint of the satellite. This also means that for a certain area or location within the satellite, the coverage of the NTN network provided by the satellite is not continuous in time. Only when the satellite activates the beam corresponding to the area with sufficient power, the NTN network using the satellite to provide coverage can transmit downlink signals or data to the terminal device (UE) in the area. That is, for a certain NTN cell using the satellite, the cell or the beam of the cell can not be able to continuously transmit.

[0006] It should be noted that the above introduction to the technical background is only for the convenience of clearly and completely describing the technical scheme of the present application and facilitating the understanding of those skilled in the art. The above technical scheme cannot be considered as known to those skilled in the art just because it is described in the background section of the present application.

[0007] SUMMARY

[0008] Currently, when the cell or the beam of the cell discontinuously transmits and / or configures a long period SSB, the UE access to the cell can fail.

[0009] For example, the network device adopts the downlink enhancement technology of 3GPP Rel-19, activates the beams of the satellite in all directions at different times, makes the satellite provide coverage for the areas corresponding to thousands of beams in the entire satellite footprint in time sharing, and transmits downlink signals (including SSB) in the corresponding areas. The period of the satellite activating a certain beam to transmit SSB can be greater than the maximum SSB period (for example, 160 ms) defined in the specification. The UE based on the 3GPP protocol version before Rel-19 does not support the configuration of SSB period exceeding 160 ms, cannot search for SSB within the expected time window, and in the initial access process, defaults to 20 ms as the period for SSB detection to search for a cell, and there is a situation that repeated SSB detection for 4 times within 80 ms still cannot search for a cell. That is, the NR NTN downlink coverage enhancement technology of Rel-19 can cause discontinuous downlink transmission or long period SSB, and thus can not be compatible with the UE of the version before Rel-19.

[0010] According to the current RAN2 discussion progress, if the maximum period of SSB is extended to support the downlink enhancement technology of Rel-19 of NR NTN, the measurement time configuration SMTC (SS / PBCH block measurement timing configuration) currently used for detecting SSB can not be enough to cover a complete SSB period, and related enhancement needs to be made.

[0011] In order to start the downlink enhancement technology of Rel-19 of NR NTN, the network device can set the bit currently existing for prohibiting the UE from accessing the network to be prohibited, to avoid the compatibility problem with the UE of the version before Rel-19, for example, using the bit of prohibiting NTN access, prohibiting the UE of the version before Rel-19 which can access the NTN network from accessing the cell starting the downlink enhancement technology of Rel-19 of NR NTN. Without other related protocol improvement, all UEs supporting NTN will be prohibited from accessing the cell, including the UE supporting the downlink enhancement technology of Rel-19 of NR NTN, so the current technology needs to be improved.

[0012] To solve one or more of the above problems or similar problems, embodiments of the present application provide a method for cell access, an indication method and apparatus for cell access.

[0013] According to an aspect of embodiments of the present application, there is provided an apparatus for cell access, which is applied to a terminal device, the apparatus comprising: a receiver configured to receive first information indicated by a network device; and a processor configured to perform first processing according to a first capability of the terminal device and / or the first information, the first capability comprising a capability of whether the terminal device supports a first feature and / or a capability of the terminal device supporting a feature related to the first feature, the first feature comprising downlink discontinuous transmission and / or long periodic SSB, the first processing being related to cell access.

[0014] According to another aspect of embodiments of the present application, there is provided an indication apparatus for cell access, which is applied to a network device, the apparatus comprising: a transmitter configured to send first information to a terminal device, the first information being used to indicate whether a cell is allowed to access, and / or, the first information comprising information related to the first feature, the first feature comprising downlink discontinuous transmission and / or long periodic SSB.

[0015] According to yet another aspect of embodiments of the present application, there is provided a communication system, which comprises a terminal device and / or a network device, the terminal device comprising the above-mentioned apparatus for cell access according to embodiments of the present application, and the network device comprising the above-mentioned indication apparatus for cell access according to embodiments of the present application.

[0016] According to yet another aspect of embodiments of the present application, there is provided a method for cell access, which is applied to a terminal device, the method comprising: receiving, by the terminal device, first information indicated by a network device; and performing, by the terminal device, first processing according to a first capability of the terminal device and / or the first information, the first capability comprising a capability of whether the terminal device supports a first feature and / or a capability of the terminal device supporting a feature related to the first feature, the first feature comprising downlink discontinuous transmission and / or long periodic SSB, the first processing being related to cell access.

[0017] According to yet another aspect of embodiments of the present application, there is provided an indication method for cell access, which is applied to a network device, the method comprising: sending, by the network device, first information to a terminal device, the first information being used to indicate whether a cell is allowed to access, and / or, the first information comprising information related to the first feature, the first feature comprising downlink discontinuous transmission and / or long periodic SSB.

[0018] According to a further aspect of the embodiments of the present application, a computer readable program is provided, which, when executed in an apparatus for cell access or a terminal device, causes the apparatus for cell access or the terminal device to perform the above-mentioned method for cell access according to the embodiments of the present application.

[0019] According to a further aspect of the embodiments of the present application, a computer readable program is provided, which, when executed in an indication apparatus for cell access or a network device, causes the indication apparatus for cell access or the network device to perform the above-mentioned indication method for cell access according to the embodiments of the present application.

[0020] According to a further aspect of the embodiments of the present application, a storage medium storing a computer readable program is provided, which causes an apparatus for cell access or a terminal device to perform the above-mentioned method for cell access according to the embodiments of the present application.

[0021] According to a further aspect of the embodiments of the present application, a storage medium storing a computer readable program is provided, which causes an indication apparatus for cell access or a network device to perform the above-mentioned indication method for cell access according to the embodiments of the present application.

[0022] One of the beneficial effects of the embodiments of the present application is that the terminal device performs the first processing related to cell access according to the first capability of the terminal device related to supporting downlink discontinuous transmission and / or long period SSB, and / or the first information indicated by the network device, so that when the cell or the beam of the cell discontinuously transmits and / or configures the long period SSB, whether the terminal device supports the downlink discontinuous transmission and / or the long period SSB or not, the terminal device can be reasonably maintained, and the problem that the terminal device fails to access the cell due to the incompatibility between the capability of the terminal device and the configuration of the network device is avoided.

[0023] For example, the network device can indicate whether the cell or the beam of the cell discontinuously transmits and / or configures the long period SSB, and / or indicate whether the terminal device is allowed to access such cell, and the network device can also flexibly adjust the configuration of the network device according to the capability report of the terminal device, and even whether to start the discontinuous transmission of the cell or the beam of the cell and / or configure the appropriate period length of the SSB, so that the problem that the terminal device fails to access the cell in the case of discontinuous transmission of the cell or the beam of the cell and / or configuration of the long period SSB is avoided.

[0024] The particular implementations of the application described in detail below are illustrative only and are not intended to limit the scope of the application to these particular implementations. Numerous variations and modifications can be made to the applications that will fall within the scope of the present application. Accordingly, the particular implementation of the application as set forth is not intended as being a limitation of the application, but rather a representation that the application can be practiced with variations and modifications other than specifically described.

[0025] Features described and / or illustrated with respect to one implementation can be used in one or more other implementations in the same or similar manner, in combination with or in place of features in other implementations, or in combination with or in place of a combination of features in other implementations.

[0026] It should be emphasized that the term "comprises / comprising" when used in this specification is taken to mean the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps, components or groups thereof. BRIEF DESCRIPTION OF DRAWINGS

[0027] Elements and features of one or more embodiments of the application described in one figure or implementation can be combined with elements and features of one or more other figures or implementations. Also in the figures, like reference numerals can indicate like components throughout the figures, and can be used to indicate corresponding components in more than one implementation.

[0028] The accompanying drawings are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings:

[0029] FIG. 1 is a schematic illustration of the earth surface coverage of a satellite at a certain orbital altitude;

[0030] FIG. 2 is a schematic illustration of the coverage area on the earth surface of a satellite beam being activated;

[0031] FIG. 3 is a schematic illustration of a communication system according to an embodiment of the application;

[0032] FIG. 4 is a schematic illustration of a method for cell access according to an embodiment of the application;

[0033] FIG. 5 is a schematic illustration of an indication method for cell access according to an embodiment of the application;

[0034] FIG. 6 is a schematic illustration of another indication method for cell access according to an embodiment of the application;

[0035] FIG. 7 is a schematic illustration of yet another indication method for cell access according to an embodiment of the application;

[0036] FIG. 8 is an interaction diagram of a method for cell access according to an embodiment of the present application;

[0037] FIG. 9 is another interaction diagram of a method for cell access according to an embodiment of the present application;

[0038] FIG. 10 is another schematic diagram of a method for cell access according to an embodiment of the present application;

[0039] FIG. 11 is yet another schematic diagram of a method for cell access according to an embodiment of the present application;

[0040] FIG. 12 is a schematic diagram of an apparatus for cell access according to an embodiment of the present application;

[0041] FIG. 13 is a schematic diagram of an apparatus for indicating cell access according to an embodiment of the present application;

[0042] FIG. 14 is a schematic block diagram of a system structure of a terminal device according to an embodiment of the present application;

[0043] FIG. 15 is a schematic block diagram of a system structure of a network device according to an embodiment of the present application. DETAILED DESCRIPTION

[0044] The foregoing and other features of the present application will become apparent to those skilled in the art upon consideration of the following description of specific embodiments of the present application, taken in conjunction with the accompanying drawings. In the description of embodiments of the present application, specific terminology is employed for the sake of clarity. However, the application is not intended to be limited to the specific embodiments described, but rather, is intended to include all modifications, equivalents, and alternatives that fall within the scope of the appended claims.

[0045] In the embodiments of the present application, the terms "first", "second", and the like are used to distinguish different elements, but do not indicate the spatial arrangement or the time sequence of the elements, and the elements should not be limited by these terms. The term "and / or" includes any one and all combinations of the associated listed terms. The terms "comprise", "include", "have", and the like, refer to the presence of the stated features, elements, elements, or components, but do not exclude the presence or addition of one or more other features, elements, elements, or components.

[0046] In the embodiments of the present application, the singular forms "a", "an", and "the" include the plural forms, and should be broadly understood as "one" or "one kind" rather than the meaning of "one"; in addition, the term "said" should be understood as including both the singular form and the plural form, unless the context clearly indicates otherwise. In addition, the term "according to" should be understood as "at least partially according to", and the term "based on" should be understood as "at least partially based on", unless the context clearly indicates otherwise.

[0047] In the embodiments of the present application, the term "communication network" or "wireless communication network" can refer to a network conforming to any communication standard, such as Long Term Evolution (LTE), LTE-Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed Packet Access (HSPA), and the like.

[0048] Also, the communication between devices in the communication system can be conducted according to any phase communication protocol, which can include but is not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and future 5G, New Radio (NR), and the like, and / or other currently known or to be developed communication protocols.

[0049] In the embodiments of the present application, the term "network" or "network device" or "network node" refers to, for example, a device in the communication system that accesses the user equipment to the communication network and provides services for the user equipment. The network device or network node can include but is not limited to the following devices: "node" and / or "donor" under the IAB architecture, base station (BS), access point (AP), transmission reception point (TRP), broadcast transmitter, mobile management entity (MME), gateway, server, radio network controller (RNC), base station controller (BSC), and the like.

[0050] The base station can include, but is not limited to, a Node B (Node B or NB), an evolved Node B (eNode B or eNB), and a 5G base station (gNB), etc., and can further include a remote radio head (RRH), a remote radio unit (RRU), a relay, or a low-power node (for example, a femto, a pico, etc.). The term "base station" can include some or all functions of them, and each base station can provide communication coverage for a specific geographic area, for example, a 5G base station gNB can include a gNB CU and one or more gNB DUs, where the CU / DU is a logical node of the gNB with part of the functions of the gNB. The term "cell" can refer to a base station and / or its coverage area, depending on the context in which the term is used. One gNB-DU supports one or more cells, and one cell is supported by only one gNB-DU.

[0051] In the embodiments of the present application, the term "user equipment" (UE) refers to a device that accesses a communication network through a network device and receives network services, which can also be referred to as "terminal equipment" (TE). The terminal equipment can be fixed or mobile, and can also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a station, etc. For example, a terminal equipment served by an IAB node or an IAB donor under an IAB architecture.

[0052] The terminal equipment can include, but is not limited to, the following devices: a cellular phone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a machine type communication device, a laptop computer, a cordless phone, a smartphone, a smartwatch, a digital camera, etc.

[0053] For another example, in an Internet of Things (IoT) scenario or the like, the terminal equipment can also be a machine or device that performs monitoring or measurement, for example, can include but is not limited to: a machine type communication (MTC) terminal, a vehicle-mounted communication terminal, a device to device (D2D) terminal, a machine to machine (M2M) terminal, etc.

[0054] In the embodiments of the present application, "when", "in the case of", "for the case of", and "if" all represent based on a certain condition or state, etc., in addition, these expressions can be replaced with each other.

[0055] The scenarios of the embodiments of the present application are described below by examples, but the present application is not limited thereto.

[0056] FIG. 3 is a schematic diagram of a communication system in the embodiments of the present application, which illustrates the case of taking a terminal device and a network device as examples, as shown in FIG. 3, the communication system 100 can include a network device 101 and a terminal device 102. For simplicity, FIG. 3 only takes one terminal device and one network device as examples for illustration, but the embodiments of the present application are not limited thereto.

[0057] In the embodiments of the present application, the network device 101 and the terminal device 102 can perform existing services or future implementable service transmission. For example, these services can include but are not limited to: enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and ultra-reliable and low-latency communication (URLLC), etc.

[0058] In the embodiments of the present application, the high-layer signaling can be, for example, radio resource control (RRC) signaling; for example, referred to as RRC message, for example, including MIB, system information, dedicated RRC message; or referred to as RRC IE. The high-layer signaling can also be, for example, MAC (Medium Access Control) signaling; or referred to as MAC CE. But the present application is not limited thereto.

[0059] The downlink enhancement technology of the Rel-19 NR NTN refers to power sharing of the satellite, that is, dynamically allocating the total transmission power of the satellite to different beams and / or different beam patterns and / or different beam sizes of the satellite. The network device can send a downlink signal or transmission to the terminal device in the coverage of the satellite beam with sufficient power, and the downlink signal or transmission has sufficient signal strength to be detected or analyzed by the terminal device when it reaches the terminal device. For the satellite beam without sufficient power, it cannot be used to send a signal with sufficient strength to be detected or analyzed by the terminal device.

[0060] The power sharing mechanism or beam hopping mechanism of the satellite of the NR NTN downlink enhancement technology makes the downlink transmission of the satellite cell or the beam of the cell discontinuous in time, that is, the NR NTN downlink enhancement technology based on the satellite power sharing mechanism causes the downlink discontinuous transmission (DL DTX) of the satellite cell or the beam of the cell, thereby affecting the related behaviors of the terminal device, such as the cell search process based on the detection of the SSB. The terminal device that does not support the DL DTX feature may even be unable to access the NTN network through the power sharing satellite. The processing of the terminal device with different capabilities by the cell starting the DL DTX should be different.

[0061] The DL DTX of the cell or the beam of the cell may be caused by the introduction of the downlink enhancement technology of the Rel-19 NR NTN, which can also be caused by the power sharing of the satellite or the beam hopping of the satellite, and may also be caused by other reasons. The downlink discontinuous transmission of the cell or the beam of the cell may make the SSB period configuration of the cell also need to be adjusted.

[0062] To solve the above problems, various embodiments of the present application will be described below in conjunction with the accompanying drawings. These embodiments are only exemplary and not limiting of the present application.

[0063] Embodiments of the first aspect

[0064] The embodiments of the present application provide a method for cell access, which is applied to a terminal device, for example, the terminal device 102 in FIG. 3.

[0065] FIG. 4 is a schematic diagram of the method for cell access according to an embodiment of the present application. As shown in FIG. 4, the method comprises:

[0066] 401: The terminal device receives the first information indicated by the network device; and

[0067] 402: The terminal device performs first processing according to the first capability of the terminal device and / or the first information.

[0068] In an embodiment of the present application, the first capability includes a capability of whether the terminal device supports a first feature and / or a capability of the terminal device related to the first feature;

[0069] In an embodiment of the present application, the first feature includes downlink discontinuous transmission and / or long period SSB; in addition, the first feature can also be referred to as a first characteristic or a first function;

[0070] In an embodiment of the present application, the "downlink discontinuous transmission" can also be replaced by "downlink transmission discontinuous" or Downlink DTX (Discontinuous Transmission) or DL DTX;

[0071] In an embodiment of the present application, "discontinuous" means discontinuous in time or time domain or time domain resource;

[0072] In an embodiment of the present application, the downlink discontinuous transmission can also be replaced by downlink enhancement of NR NTN or power sharing of satellite or beam hopping of satellite; the downlink discontinuous transmission is caused by power sharing of satellite or beam hopping of satellite, or can also be caused by other reasons;

[0073] In an embodiment of the present application, the downlink discontinuous transmission is a cell-level downlink discontinuous transmission, or the downlink discontinuous transmission is a beam-level downlink discontinuous transmission of a cell.

[0074] In an embodiment of the present application, the long period SSB means that the length of the period in which the network device configures or transmits SSB is longer than the period of the existing SSB applied in the version before 3GPP Rel-19, for example, due to downlink discontinuous transmission of a cell or a beam of a cell, it is necessary to adjust the SSB period configuration of the cell, for example, to adjust to a long period SSB; in addition, the long period SSB can also be configured based on other reasons.

[0075] In an embodiment of the present application, the period of the long period SSB is the period in which the network device configures or transmits SSB and / or the SSB period assumed by the terminal device in the initial cell selection process;

[0076] In an embodiment of the present application, the period of the long period SSB is associated with the mode of the downlink discontinuous transmission;

[0077] In the embodiments of the present application, the network device configures or transmits a period of SSBs greater than 160 ms and / or the terminal device assumes a period of SSBs greater than 20 ms in the initial cell selection process.

[0078] For example, the network device configures or transmits a period of SSBs greater than 160 ms or 320 ms or 640 ms or 1280 ms, and / or the terminal device assumes a period of SSBs greater than or equal to one of the following: 20 ms, 40 ms, 80 ms, 160 ms, 320 ms, 640 ms, and 1280 ms in the initial cell selection process.

[0079] In the embodiments of the present application, the first processing is related to cell access.

[0080] In this way, the terminal device performs the first processing related to cell access according to its own first capability related to supporting downlink discontinuous transmission and / or long-period SSBs and / or the first information indicated by the network device, so that when the cell or the beam of the cell has discontinuous transmission and / or is configured with a long-period SSB, whether the terminal device supports downlink discontinuous transmission and / or a long-period SSB or not, the terminal device can be reasonably maintained, and problems such as failure of the terminal device to access the cell due to incompatibility between the capability of the terminal device and the configuration of the network device are avoided.

[0081] For example, the network device can indicate whether the cell or the beam of the cell has discontinuous transmission and / or is configured with a long-period SSB, and / or indicate whether the terminal device is allowed to access such a cell, and the network device can also flexibly adjust the configuration of the network device according to the capability report of the terminal device, and even whether to start discontinuous transmission of the cell or the beam of the cell and / or configure a suitable period of SSBs, thereby avoiding problems such as failure of the terminal device to access the cell when the cell or the beam of the cell has discontinuous transmission and / or is configured with a long-period SSB.

[0082] In the embodiments of the present application, the first information is indicated by at least one of MIB, SIB, a dedicated RRC message, MAC CE, and DCI. That is, the signaling indicating the first information can be at least one of MIB, SIB, dedicated RRC signaling, MAC CE, and DCI.

[0083] In the embodiments of the present application, the first information can be used to indicate whether the cell allows access.

[0084] In the embodiments of the present application, whether the cell allows access includes at least one of the following:

[0085] Whether to allow access of the first feature;

[0086] whether the access is allowed for a non-first feature;

[0087] whether the access is allowed for a terminal device with a different first capability.

[0088] For example, the access of the first feature can also be access based on the first feature, or access related to the first feature, or access for which the first feature is applied or started.

[0089] In the embodiments of the present application, the indication of whether the cell allows access can also include:

[0090] The network device indicates whether the cell allows access through a barring bit in the first information, and the barring bit includes a first barring bit and / or a second barring bit.

[0091] For example, the specific method in which the network device indicates whether the cell allows access through the barring bit in the first information includes:

[0092] The network device sets the barring bit to barred, or does not configure the barring bit, to indicate that the cell bars access associated with the barring bit; and / or the network device sets the barring bit to notBarred to indicate that the cell does not bar access associated with the barring bit.

[0093] And / or when the barring bit is a barring bit related to the first feature, it also indicates that the terminal device starts the first feature in the cell.

[0094] In the embodiments of the present application, the first barring bit is an existing barring bit. For example, the existing barring bit is a barring bit defined in the 3GPP specification before Rel-19 version, indicating whether the cell bars access not related to the first feature or said non-first feature access, and / or whether the cell bars access of a terminal device that does not support the first feature.

[0095] For example:

[0096] if the access is not for the first feature or the UE is not capable of the first feature;and if the existing Bar bit in the acquired message is set to barred or the existing Bar bit is not included in the acquired message:

[0097] The UE considers the cell as barred. [0097.1][Corrected according to Rule 26 20.12.2024] If the access is not for the first feature, or the UE cannot implement the first feature; if the existing Bar bit in the acquired message is set to barred, or the existing Bar bit is not included in the acquired information: [0097.2][Corrected according to Rule 26 20.12.2024] The UE considers the cell as barred

[0098] For example, the existing Bar bit includes at least one of the following: cellbarred; cellBarredNTN; cellBarredFixedVSAT; cellBarredMobileVSAT; cellBarredATG; cellBarredNES.

[0099] In the embodiments of the present application, for a terminal device supporting the first feature and / or determining that the access is the access of the first feature, the first Bar bit is ignored.

[0100] In the embodiments of the present application, the second Bar bit is a new Bar bit. For example, the introduced new Bar bit is a Bar bit associated with the first feature, indicating whether the cell prohibits the access of the first feature, and / or whether the cell prohibits the access of the terminal device supporting the first feature.

[0101] In the embodiments of the present application, the first information can also include information related to the first feature, as described above, the first feature including downlink discontinuous transmission and / or long-period SSB.

[0102] In the embodiments of the present application, the first feature-related information includes first access indication information and / or first configuration information;

[0103] For example, the first access indication information includes at least one of the following:

[0104] Information indicating whether the cell allows access of a feature other than the first feature;

[0105] Information indicating whether the cell allows access of the first feature;

[0106] Information indicating whether the cell allows access of a terminal device that does not support the first feature;

[0107] Information indicating whether the cell allows access of a terminal device supporting the first feature;

[0108] For example, the first configuration information includes at least one of the following:

[0109] an indication of whether the first feature is enabled in the cell;

[0110] configuration parameter information of the first feature, for example, the configuration parameter information of the first feature at least includes: a pattern of the first feature, for example, a pattern of DTX at a cell level or a beam level, and / or a period of the first feature, for example, a period in which the network device configures or transmits an SSB.

[0111] In operation 402, the terminal device performs first processing according to the first capability of the terminal device itself and / or the first information indicated by the network device.

[0112] In the embodiments of the present application, as described above, the first capability includes the capability of whether the terminal device supports the first feature and / or the capability of the terminal device supporting the first feature. In addition, the first capability is the capability determined by the terminal device. That is, the terminal device determines its own capability of whether to support the first feature and / or the capability of supporting the first feature.

[0113] In the embodiments of the present application, the first processing includes at least one of the following:

[0114] determining whether the first feature is enabled in the cell;

[0115] determining whether the cell allows the terminal device to access;

[0116] determining whether the current access is an access of the first feature;

[0117] accessing the cell;

[0118] measuring other cells;

[0119] handing over or reselecting to other cells.

[0120] In the embodiments of the present application, the terminal device performs first processing according to the first capability of the terminal device and / or the first information, including:

[0121] The terminal device determines whether it can access the cell according to the first access indication information in the first information and the first capability of the terminal device, or the terminal device determines whether it can access the cell according to the first configuration information in the first information and the first capability of the terminal device.

[0122] For example, the network device uses SIB1 to indicate the first information, and the terminal device supporting the first feature acquires the SIB1 to determine whether the first feature is enabled in the cell:

[0123] A UE capable of the first feature’s access should acquire SIB1 to determine whether the cell is cell with a first feature on. [0123.1][According to Rule 26 Correction 20.12.2024](A UE capable of the first feature’s access should acquire SIB1 to determine whether the cell is cell with a first feature on)

[0124] For example, the network device configures the first information, including first determining whether the cell starting the first feature is compatible with the terminal device not supporting the first feature, and then configuring the first information. For example, when the cell starting the first feature is not compatible with the terminal device not supporting the first feature, the network device configures the first information to indicate that access irrelevant to the first feature is not allowed, or non-first feature access is not allowed, and / or access of the terminal device not supporting the first feature is not allowed.

[0125] For example, the terminal device not supporting the first feature includes a terminal device of a pre-Rel-19 version (Pre-Rel-19 UE) and / or a terminal device of a Rel-19 and later version not supporting the first feature.

[0126] In the above embodiment, the first capability of the terminal device does not need to be indicated to the network device through signaling, and the terminal device can determine whether the cell can be accessed and the subsequent terminal device behavior according to the configuration of the network device.

[0127] In the embodiment of the present application, the terminal device can determine whether the cell can be accessed according to the first access indication information in the first information indicated by the network device and the first capability of the terminal device.

[0128] Alternatively, the terminal device determines whether the cell can be accessed according to the first capability of the terminal device, for example:

[0129] The terminal device of a Rel-19 and later version not supporting the first feature determines that the cell starts the first feature and / or determines that the access is the access of the first feature, and considers that the cell prohibits the terminal device from accessing; and / or,

[0130] The terminal device supporting the first feature determines that the cell starts the first feature and / or determines that the access is the access of the first feature, and considers that the cell does not prohibit the terminal device from accessing.

[0131] In the embodiments of the present application, the terminal device determines whether the first feature is enabled in the cell, which can be determined by the terminal device according to the first configuration information in the first information indicated by the network device, for example, the terminal device considers that the network device enables the first feature according to the configuration of the parameter related to the first feature.

[0132] In the embodiments of the present application, as shown in FIG. 4, the method can further include:

[0133] 403: The terminal device receives second configuration information from the network device,

[0134] The second configuration information is used to configure a measurement time configuration for detecting SSB compatible with the first feature.

[0135] Operation 403 is an optional operation, which is represented by a dashed box in FIG. 4. In addition, the timing relationship between operation 403 and operations 401-402 is not limited.

[0136] In the embodiments of the present application, as described above, the NR NTN downlink enhancement technology of Rel-19 will cause discontinuous transmission of downlink. When the time interval between adjacent two downlink transmission capabilities is greater than a first time length, the time interval of SSB transmitted by the cell or the beam of the cell is at least greater than the first time length. This not only affects the period of SSB transmitted by the network device, but also affects the default SSB period length used by the terminal device to search for the cell, and also affects the measurement time configuration (SMTC, SS / PBCH Block Measurement Timing Configuration) of SSB, such as the period and offset of the measurement time window. Therefore, for the cell that enables the first feature, the network device can configure a measurement time configuration compatible with the first feature.

[0137] In the embodiments of the present application, compatibility with the first feature includes:

[0138] Enhancing the domain definition or parameter description of the parameters related to the measurement time configuration to be compatible with the first feature; for example, the measurement time configuration smtc2-LP for long-period SSB of a neighbor cell, since the period in the SMTC of SSB can be greater than 160 ms, for example, the period is increased by 320 ms or 640 ms or 1280 ms, etc., therefore, the parameter description of smtc2-LP is updated according to the maximum value of SMTC, for example:

[0139] smtc2-LP

[0140] Measurement timing configuration for intra-frequency neighbour cells with a Long Periodicity (LP) indicated by periodicity in smtc2-LP. The timing offset and duration are equal to the offset and duration indicated in smtc in intraFreqCellReselectionlnfo. The periodicity in smtc2-LP can only be set to a value strictly larger than the periodicity in smtc in intraFreqCellReselectionlnfo (e.g. if smtc indicates sf20 the Long Periodicity can not be set to sf5, sf10, sf20, if smtc indicates the longest periodicity, smtc2-LP cannot be configured). The pci-List, if present, includes the physical cell identities of the intra-frequency neighbour cells with Long Periodicity. If smtc2-LP is absent, the UE assumes that there are no intra-frequency neighbour cells with a Long Periodicity. [0140.1] [Corrected according to Rule 26 20.12.2024] Measurement timing configuration for intra-frequency neighbor cells with long periodicity (LP), indicated by the periodicity in smtc2-LP. The timing offset and duration are equal to the offset and duration indicated in smtc in intraFreqCellReselectionlnfo. The periodicity in smtc2-LP can only be set to a value strictly greater than the periodicity in smtc in intraFreqCellReselectionlnfo (e.g. if smtc indicates sf20, the long periodicity cannot be set to sf5, sf10, sf20, if smtc indicates the longest periodicity, smtc2-LP cannot be configured). pci-List (if present) includes the physical cell identities of intra-frequency neighbor cells with long periodicity. If smtc2-LP is not present, the UE assumes that there are no intra-frequency neighbor cells with long periodicity

[0141] or

[0142] smtc2-LP

[0143] Measurement timing configuration for intra-frequency neighbour cells with a Long Periodicity (LP) indicated by periodicity in smtc2-LP. The timing offset and duration are equal to the offset and duration indicated in smtc in intraFreqCellReselectionlnfo. The periodicity in smtc2-LP can only be set to a value strictly larger than the periodicity in smtc in intraFreqCellReselectionlnfo (e.g. if smtc indicates sf20 the Long Periodicity can only be set to sf40, or longer than sf40, if smtc indicates the max value, smtc2-LP cannot be configured). The pci-List, if present, includes the physical cell identities of the intra-frequency neighbour cells with Long Periodicity. If smtc2-LP is absent, the UE assumes that there are no intra-frequency neighbour cells with a Long Periodicity. [0143.1] [Corrected according to Rule 26 20.12.2024] Measurement timing configuration for intra-frequency neighbor cells with long periodicity (LP) is represented by the periodicity in smtc2-LP. The timing offset and duration is equal to the offset and duration indicated in smtc in intraFreqCellReselectionInfo. The periodicity in smtc2-LP can only be set to a value strictly greater than the periodicity in smtc in intraFreqCellReselectionInfo (e.g. if smtc indicates sf20, the long periodicity can only be set to sf40 or longer than sf40, if smtc indicates the maximum value, smtc2-LP cannot be configured). The pci-List (if present) includes the physical cell identities of intra-frequency neighbor cells with long periodicity. If smtc2-LP is not present, the UE assumes that there are no intra-frequency neighbor cells with long periodicity.

[0144] In embodiments of the present application, the period of the measurement time window in the measurement time configuration is consistent with the period of the first characteristic, for example, the period of the measurement time window in the SMTC is consistent with the period of the first characteristic, for example, the period of the measurement time window in the SMTC is greater than or equal to the period of the downlink DTX of the first characteristic, for example, the period of the measurement time window in the SMTC is the same as the period of the long periodic SSB of the first characteristic.

[0145] Alternatively, the configuration of the period of the measurement time window in the measurement time configuration only takes effect during the period when the cell or the beam of the cell is capable of downlink transmission, for example, the configuration of the period of the measurement time window in the SMTC only takes effect during the period when the cell or the beam of the cell is capable of downlink transmission.

[0146] In embodiments of the present application, the measurement time configuration includes a first measurement time configuration and / or a second measurement time configuration.

[0147] In embodiments of the present application, the first measurement time configuration is, for example, the related configuration of the SMTC of the existing SSB, and the second measurement time configuration is, for example, the related configuration of the SMTC of the new SSB.

[0148] For example, the related configuration of the SMTC of the existing SSB includes at least one of the following:

[0149] smtcl or SSB-MTC;

[0150] smtc2 or SSB-MTC2;

[0151] smtc2-LP or SSB-MTC2-LP-r16;

[0152] smtc4list or SSB-MTC4-r17;

[0153] SSB-MTC-AdditionalPCI-r17.

[0154] In the embodiments of the present application, when the measurement time configuration includes a first measurement time configuration (for example, the related configuration of the SMTC of the existing SSB), the maximum value in the value range of the first period of the first measurement time configuration is greater than or equal to the period of the first characteristic of the cell or the beam of the cell, and / or the value range of the offset corresponding to the first period is determined by the length of the first period,

[0155] The first period includes a second period in the first measurement time configuration and / or a third period related to the first characteristic added in the first measurement time configuration, for example, the second period is the period of the existing measurement time window for receiving SSB in the first measurement time configuration, and the third period is the period of the new measurement time window for receiving SSB.

[0156] For example, enhancing the first measurement time configuration, for example, the related configuration of the SMTC of the existing SSB, to make the first measurement time configuration compatible with the first characteristic includes that the maximum value in the value range of the first period of the first measurement time configuration is greater than or equal to the period of the first characteristic of the cell or the beam of the cell, and / or the offset of the measurement time window for receiving SSB corresponding to the first period, for example, when the period of the first characteristic is 640 ms, the maximum value of the first period at least supports 640 ms, and the value range of the offset of the measurement time window corresponding to the first period at least includes from 0 to 639; for example, reusing the existing parameters in the first measurement time configuration, expanding the related value range, for example, expanding the second period and the offset corresponding to the second period; and for example, using new parameters in the first measurement time configuration to configure the third period as the first period, and / or configuring the offset corresponding to the third period.

[0157] For example, the value range of the period of the enhanced existing first measurement time configuration is compatible with the first characteristic with a period greater than 160 ms, for example, when the period of the first characteristic is 640 ms, at least sf640 is added in the parameters of the first measurement time configuration, and the value range of the corresponding offset is (0..639), taking SSB-MTC as an example, at least sf640 INTEGER(0..639) is added in the value range of the period and offset, for example:

[0158] For example, for SSB-MTC2, when the period of the first characteristic is 640 ms, at least the possible value of the period includes sf640, for example:

[0159] For example, for SSB-MTC4-r17, when the periodicity of the first characteristic is 640 ms, the value of offset-r17 is extended to (0..639), or a new offset is added to support a period greater than 160 ms, for example:

[0160] Or

[0161] For example, when the periodicity of the first characteristic is 640 ms, SSB-MTC-AdditionalPCI-r17 is extended to support a period of 640 ms, and the value of period-r17 includes at least 640 ms, or a new period parameter is added to support a period greater than 160 ms, for example:

[0162] Or

[0163] As can be seen from the above embodiments, the terminal device performs first processing related to cell access according to its own first capability related to supporting downlink discontinuous transmission and / or long-period SSB, and / or first information indicated by the network device, so that when the cell or the beam of the cell discontinuously transmits and / or configures a long-period SSB, whether the terminal device supports downlink discontinuous transmission and / or a long-period SSB or not, the terminal device can be reasonably maintained, and problems such as failure of the terminal device to access the cell due to incompatibility between the capability of the terminal device and the configuration of the network device are avoided.

[0164] For example, the network device can indicate whether the cell or the beam of the cell discontinuously transmits and / or configures a long-period SSB, and / or whether the terminal device is allowed to access such a cell, and the network device can also flexibly adjust the configuration of the network device according to the capability report of the terminal device, and even whether to start discontinuous transmission of the cell or the beam of the cell and / or configure a suitable period length of SSB, thereby avoiding problems such as failure of the terminal device to access the cell when the cell or the beam of the cell discontinuously transmits and / or configures a long-period SSB.

[0165] Embodiments of the second aspect

[0166] The embodiments of the present application provide an indication method for cell access, which is applied to a network device and corresponds to the method for cell access applied to a terminal device in the embodiments of the first aspect. The same or corresponding contents can be referred to the description in the embodiments of the first aspect.

[0167] The method is applied to a network device, for example, the network device 101 in FIG. 3.

[0168] FIG. 5 is a schematic diagram of an indication method for cell access according to an embodiment of the present application. As shown in FIG. 5, the method comprises the following steps.

[0169] 501: A network device sends first information to a terminal device.

[0170] The first information is used to indicate whether the cell allows access, and / or the first information comprises information related to the first feature,

[0171] In an embodiment of the present application, the first feature comprises downlink discontinuous transmission and / or long-period SSB.

[0172] In an embodiment of the present application, whether the cell allows access comprises at least one of the following:

[0173] Whether access of the first feature is allowed;

[0174] Whether access of a feature other than the first feature is allowed;

[0175] Whether access of a terminal device with a different first capability is allowed,

[0176] In an embodiment of the present application, the network device indicates, by a barring bit in the first information, whether the cell allows access, the barring bit comprising a first barring bit and / or a second barring bit.

[0177] For example, the network device indicates, by the barring bit in the first information, whether the cell allows access comprises:

[0178] The network device indicates, by setting the barring bit as barred or not configuring the barring bit, that the cell bars access associated with the barring bit; and / or the network device sets the barring bit as notBarred to indicate that the cell does not bar access associated with the barring bit; and / or,

[0179] The network device indicates, by the first barring bit, whether the cell bars access of a feature other than the first feature, and / or whether the cell bars access of a terminal device that does not support the first feature; and / or,

[0180] The second barring bit is a barring bit related to the first feature, and the network device indicates, by the second barring bit, whether the cell bars access of the first feature, and / or whether the cell bars access of a terminal device that supports the first feature.

[0181] Details about the network device indicating whether the cell allows access through the bar bit can be found in the related description of the embodiments of the first aspect, which will not be repeated here.

[0182] In the embodiments of the present application, the information related to the first characteristic includes first access indication information and / or first configuration information.

[0183] For example, the first access indication information includes at least one of the following:

[0184] Information indicating whether the cell allows access of a non-first characteristic;

[0185] Information indicating whether the cell allows access of the first characteristic;

[0186] Information indicating whether the cell allows access of a terminal device that does not support the first characteristic;

[0187] Information indicating whether the cell allows access of a terminal device that supports the first characteristic;

[0188] For example, the first configuration information includes at least one of the following:

[0189] Indication information indicating whether the cell has enabled the first characteristic;

[0190] Configuration parameter information of the first characteristic.

[0191] In the embodiments of the present application, as shown in FIG. 5, the method further includes:

[0192] 502: The network device sends second configuration information to the terminal device.

[0193] Operation 502 is an optional operation, which is represented by a dashed box in FIG. 5. In addition, the timing relationship between operation 502 and operation 501 is not limited.

[0194] In the embodiments of the present application, the second configuration information is used to configure a measurement time configuration for detecting SSBs compatible with the first characteristic;

[0195] In the embodiments of the present application, compatibility with the first characteristic includes:

[0196] Enhancing the domain definition or parameter description of the parameters related to the measurement time configuration to be compatible with the first characteristic, and / or,

[0197] The period of the measurement time window in the measurement time configuration is consistent with the period of the first characteristic, or the configuration of the period of the measurement time window in the measurement time configuration only takes effect during the period when the cell or the beam of the cell can perform downlink transmission.

[0198] The measurement time configuration includes the first measurement time configuration and / or the second measurement time configuration.

[0199] In the embodiments of the present application, when the measurement time configuration includes the first measurement time configuration, a maximum value in a value range of a first period of the first measurement time configuration is greater than or equal to a period of the first characteristic of the cell or the beam of the cell, and / or a value range of an offset corresponding to the first period is determined by a length of the first period,

[0200] The first period includes a second period in the first measurement time configuration and / or a third period related to the first characteristic added in the first measurement time configuration.

[0201] For specific content of the second configuration information, refer to the related description in the embodiments of the first aspect, which will not be repeated here.

[0202] FIG. 6 is another schematic diagram of an indication method for cell access according to an embodiment of the present application. As shown in FIG. 6, the method includes:

[0203] 601: A network device configures first information according to implementation of the network device;

[0204] 602: The network device sends the first information to a terminal device.

[0205] FIG. 7 is still another schematic diagram of an indication method for cell access according to an embodiment of the present application. As shown in FIG. 7, the method includes:

[0206] 701: A network device configures first information according to a first capability reported by a terminal device,

[0207] The first capability includes a capability of whether the terminal device supports a first characteristic and / or a capability supported by the terminal device related to the first characteristic;

[0208] 702: The network device sends the first information to the terminal device.

[0209] In the embodiments of the present application, the network device configures the first information according to the first capability reported by the terminal device, including:

[0210] The network device requests or queries the first capability of the terminal device; and / or, the network device receives the first capability reported by the terminal device from the terminal device; for example, through a UE capability transfer process, the network device sends UECapabilityEnquiry to request or query the first capability of the terminal device; the terminal device uses UECapabilityInformation to report the first capability of the terminal device to the network device;

[0211] and / or,

[0212] The network device configures first information matching the first capability of the terminal device according to the first capability of the terminal device.

[0213] Next, the actions of the network device side and the terminal device side are described.

[0214] FIG. 8 is an interaction diagram of a method for cell access according to an embodiment of the present application. The method comprises:

[0215] 801: The network device configures first information according to the implementation of the network device;

[0216] For example, the network device configures the first information by first determining whether the cell starting the first feature can be compatible with the terminal device not supporting the first feature, and then configuring the first information. For example, when the cell starting the first feature cannot be compatible with the terminal device not supporting the first feature, the network device configures the first information, for example, configures the prohibit bit to be in the prohibited state, indicating that the access irrelevant to the first feature is not allowed or the access of the non-first feature is not allowed, and / or the access of the terminal device not supporting the first feature is not allowed.

[0217] For example, the terminal device not supporting the first feature includes a terminal device of a pre-Rel-19 version (Pre-Rel-19 UE) and / or a terminal device of a Rel-19 and later version not supporting the first feature.

[0218] 802: The network device sends the first information to the terminal device;

[0219] 803: The terminal device performs first processing according to the first capability of the terminal device and / or the first information.

[0220] FIG. 9 is another interaction diagram of a method for cell access according to an embodiment of the present application. The method comprises:

[0221] 901: The terminal device reports the first capability of the terminal device to the network device;

[0222] 902: The network device configures first information according to the first capability reported by the terminal device;

[0223] For example, the first capability reported by the terminal device indicates that the first feature is not supported, the network device does not start or deactivate the first feature of the cell, so that the terminal device can access the cell, or the network device configures the first information to indicate whether the cell prohibits the terminal device not supporting the first capability from accessing;

[0224] For example, the first capability of the terminal device indicates a maximum capability of supporting a first characteristic, such as a maximum supported downlink DTX interval or a shortest downlink available time, and / or a maximum periodicity of supporting cell transmitting SSB, and / or a SSB periodicity used by a cell for searching, and the network device configures first information according to the first capability reported by the terminal device, which contains parameters related to the first characteristic of the cell matching the first capability, so as to enable the terminal device to access the cell.

[0225] 903: The network device sends the first information to the terminal device.

[0226] 904: The terminal device performs first processing according to the first capability of the terminal device and / or the first information.

[0227] In the embodiments of the present application, the specific implementation of the above operation can refer to the related description in the embodiments of the first aspect, which will not be described here.

[0228] As can be seen from the above embodiments, the network device indicates the first information for indicating whether the cell allows access and / or is related to downlink discontinuous transmission and / or long-period SSB to the terminal device, so that when the cell or the beam of the cell discontinuously transmits and / or configures a long-period SSB, whether the terminal device supports downlink discontinuous transmission and / or long-period SSB or not, the terminal device can be reasonably maintained, and problems such as failure of the terminal device to access the cell due to incompatibility between the capability of the terminal device and the configuration of the network device are avoided.

[0229] For example, the network device can indicate whether the terminal device cell or the beam of the cell discontinuously transmits and / or configures a long-period SSB, and / or whether the terminal device is allowed to access such a cell, and the network device can also flexibly adjust the configuration of the network device according to the capability report of the terminal device, and even whether to start the discontinuous transmission of the cell or the beam of the cell and / or configure a suitable length of the periodicity of SSB, so as to avoid problems such as failure of the terminal device to access the cell in the case of discontinuous transmission of the cell or the beam of the cell and / or configuration of a long-period SSB.

[0230] Embodiments of the third aspect

[0231] The embodiments of the present application provide a method for cell access, which is applied to a terminal device, such as the terminal device 102 in FIG. 3.

[0232] FIG. 10 is another schematic diagram of the method for cell access according to an embodiment of the present application. As shown in FIG. 10, the method comprises:

[0233] 1001: The terminal device sends information of a first capability of the terminal device to a network device.

[0234] 1002: The terminal device receives second information indicated by the network device; and

[0235] 1003: The terminal device performs second processing according to the second information.

[0236] In the embodiments of the present application, the first capability includes a capability of whether the terminal device supports a first feature and / or a capability of the terminal device supporting a feature related to the first feature, the first feature includes downlink discontinuous transmission and / or long period SSB, and the second processing is related to cell access.

[0237] In the embodiments of the present application, the second information includes at least one of the following:

[0238] Information allowing the terminal device to access the cell;

[0239] Information prohibiting the terminal device from accessing the cell;

[0240] Information indicating the terminal device to switch to another cell;

[0241] Information indicating the terminal device to reselect to another cell;

[0242] Information releasing the terminal device;

[0243] The cause of the switching or the reselection or the release is related to a mismatch between the first capability of the terminal device and a requirement of the first feature of the cell or a beam of the cell.

[0244] In the embodiments of the present application, the second processing includes at least one of the following:

[0245] Accessing the cell;

[0246] Measuring another cell;

[0247] Switching or reselecting to another cell.

[0248] The embodiments of the present application also provide an indication method for cell access, which is applied to a network device, for example, the network device 101 in FIG. 3.

[0249] FIG. 11 is another schematic diagram of the indication method for cell access in the embodiments of the present application. As shown in FIG. 11, the method includes the following steps.

[0250] 1101: A network device receives information of a first capability of a terminal device from the terminal device;

[0251] 1102: The network device sends second information to the terminal device according to the first capability of the terminal device,

[0252] The first capability includes a capability of whether the terminal device supports a first feature and / or a capability of the terminal device related to the first feature,

[0253] The first feature includes a downlink discontinuous transmission and / or a long period SSB,

[0254] The second information is used to indicate whether the cell allows access.

[0255] In the embodiments of the present application, the second information includes at least one of the following:

[0256] Information allowing the terminal device to access the cell;

[0257] Information prohibiting the terminal device from accessing the cell;

[0258] Information indicating the terminal device to switch to another cell;

[0259] Information indicating the terminal device to reselect to another cell;

[0260] Information releasing the terminal device;

[0261] The cause of the switching or the reselection or the release is related to a mismatch between the first capability of the terminal device and a requirement of the first feature of the cell or a beam of the cell.

[0262] In the embodiments of the present application, the network device indicates whether the cell allows access through a prohibit bit (bar bit) in the second information, and the prohibit bit includes a first prohibit bit and / or a second prohibit bit.

[0263] In the embodiments of the present application, the network device indicates whether the cell allows access through the prohibit bit (bar bit) in the second information includes:

[0264] The network device indicates, through the configuration of the first prohibit bit, whether the cell prohibits access of a feature other than the first feature, and / or whether the cell prohibits access of a terminal device that does not support the first feature; and / or,

[0265] The second prohibit bit is a prohibit bit related to the first feature, and the network device indicates, through the configuration of the second prohibit bit, whether the cell prohibits access of the first feature, and / or whether the cell prohibits access of a terminal device that supports the first feature.

[0266] In the embodiments of the present application, the network device indicates whether the cell allows access through a bar bit, including: the network device indicates that the cell prohibits access associated with the bar bit by configuring the bar bit as barred or not configuring the bar bit; and / or the network device sets the bar bit as not barred, indicating that the cell does not prohibit access associated with the bar bit.

[0267] In the above embodiments, the network device uses signaling to indicate the terminal device whether the cell prohibits access, and the process includes, for example:

[0268] The network device decides to allow or prohibit the terminal device to access according to the first capability of the terminal device.

[0269] For the terminal device that the network prohibits to access, the network device indicates the terminal device to switch or reselect to other cells, including intra-frequency cells and / or inter-frequency cells, and / or the network device releases the terminal device.

[0270] The network device indicates the terminal device to switch or reselect to other cells, and also includes information indicating other cells, such as the frequency of the cell, the identity of the cell, etc.

[0271] The network device indicates the terminal device to switch or reselect to other cells, and / or releases the terminal device, and the process also includes indicating the terminal device that the reason for switching or reselecting or releasing is that the first capability of the device and the requirement of the first characteristic of the cell or the beam of the cell do not match.

[0272] In the above embodiments, the network device determines whether the current cell can be compatible with the terminal device according to the first capability reported by the terminal device, and directly indicates the second processing required by the terminal device, reducing the design complexity of the terminal device.

[0273] The above operations that are the same as or similar to the embodiments of the first aspect and the embodiments of the second aspect can refer to the description in the embodiments of the first aspect and the embodiments of the second aspect, which will not be repeated here.

[0274] As can be seen from the above embodiments, the network device indicates the second information related to cell access to the terminal device according to the first capability reported by the terminal device, so that when the cell or the beam of the cell discontinuous transmission and / or long period SSB is configured, whether the terminal device supports downlink discontinuous transmission and / or long period SSB, or the terminal device does not support downlink discontinuous transmission and / or long period SSB, can be reasonably maintained, avoiding the problem that the capability of the terminal device is incompatible with the configuration of the network device, resulting in the failure of the terminal device to access the cell, etc.

[0275] In addition, the network device judges whether the current cell is compatible with the terminal device according to the first capability reported by the terminal device, and directly instructs the second processing required by the terminal device, thereby reducing the design complexity of the terminal device.

[0276] Embodiments of the fourth aspect

[0277] The embodiments of the present application provide a device for cell access, which is arranged in a terminal device. Since the principle of solving the problem of the device is similar to the method of the embodiments of the first aspect, the specific implementation thereof can refer to the implementation of the method of the embodiments of the first aspect, and the same or related contents will not be described repeatedly.

[0278] FIG. 12 is a schematic diagram of the device for cell access according to the embodiments of the present application. As shown in FIG. 12, the device for cell access 1200 includes:

[0279] a receiver 1201 configured to receive first information indicated by a network device; and

[0280] a processor 1202 configured to determine a first capability of the terminal device, and / or perform first processing according to the first capability of the terminal device and / or the first information,

[0281] In the embodiments of the present application, the first capability includes the capability of whether the terminal device supports a first feature and / or the capability of the terminal device supporting a feature related to the first feature, the first feature includes downlink discontinuous transmission and / or long-period SSB, and the first processing is related to cell access.

[0282] In the embodiments of the present application, the first information is used to indicate whether the cell is allowed to access, and / or

[0283] The first information includes information related to the first feature.

[0284] In the embodiments of the present application, the first information is indicated by at least one of MIB, SIB, a dedicated RRC message, a MAC CE, and DCI.

[0285] In the embodiments of the present application, whether the cell is allowed to access includes at least one of the following:

[0286] whether the access of the first feature is allowed;

[0287] whether the access of a feature other than the first feature is allowed;

[0288] whether the terminal device with different first capability is allowed to access.

[0289] In the embodiments of the present application, the network device indicates whether the cell allows access through a barring bit in the first information, the barring bit includes a first barring bit and / or a second barring bit.

[0290] In the embodiments of the present application, for a terminal device supporting the first feature and / or determining that the access is the access of the first feature, the first barring bit is ignored, and / or,

[0291] The second barring bit is a barring bit associated with the first feature, the second barring bit is used to indicate whether the cell prohibits the access of the first feature, and / or whether the cell prohibits the access of the terminal device supporting the first feature.

[0292] In the embodiments of the present application, the first feature-related information includes first access indication information and / or first configuration information;

[0293] For example, the first access indication information includes at least one of the following:

[0294] Information indicating whether the cell allows access of a feature other than the first feature;

[0295] Information indicating whether the cell allows access of the first feature;

[0296] Information indicating whether the cell allows access of a terminal device that does not support the first feature;

[0297] Information indicating whether the cell allows access of a terminal device supporting the first feature;

[0298] For example, the first configuration information includes at least one of the following:

[0299] Indication information indicating whether the cell enables the first feature;

[0300] Configuration parameter information of the first feature.

[0301] In the embodiments of the present application, the downlink discontinuous transmission is a cell-level downlink discontinuous transmission, or the downlink discontinuous transmission is a beam-level downlink discontinuous transmission of the cell, and / or,

[0302] The period of the long-period SSB is a period of SSB configured or transmitted by the network device and / or an SSB period assumed by the terminal device in the initial cell selection process, and / or the period of the long-period SSB is associated with the mode of the downlink discontinuous transmission, and / or the period of SSB configured or transmitted by the network device is greater than 160 ms and / or the SSB period assumed by the terminal device in the initial cell selection process is greater than 20 ms.

[0303] In the embodiments of the present application, the first processing includes at least one of the following:

[0304] Determining whether the first feature is enabled in the cell;

[0305] Determining whether the terminal device is allowed to access the cell;

[0306] Determining whether the current access is an access of the first feature;

[0307] Accessing the cell;

[0308] Measuring other cells;

[0309] Handing over or reselecting to other cells.

[0310] In the embodiments of the present application, the processor performs first processing according to the first capability of the terminal device and / or the first information, including:

[0311] The processor determines whether the terminal device can access the cell according to the first access indication information in the first information and the first capability of the terminal device; or

[0312] The processor determines whether the terminal device can access the cell according to the first configuration information in the first information and the first capability of the terminal device.

[0313] In the embodiments of the present application, the receiver further receives second configuration information from the network device,

[0314] The second configuration information is used to configure a measurement time configuration for detecting SSBs compatible with the first feature.

[0315] In the embodiments of the present application, compatibility with the first feature includes:

[0316] Enhancing the domain definition or parameter description of the parameters related to the measurement time configuration to be compatible with the first feature.

[0317] In the embodiments of the present application, the period of the measurement time window in the measurement time configuration is consistent with the period of the first feature, or the configuration of the period of the measurement time window in the measurement time configuration is only valid during the period when the cell or the beam of the cell can perform downlink transmission,

[0318] The measurement time configuration includes a first measurement time configuration and / or a second measurement time configuration.

[0319] In the embodiments of the present application, when the measurement time configuration includes a first measurement time configuration, the maximum value in the value range of the first period of the first measurement time configuration is greater than or equal to the period of the first feature of the cell or the beam of the cell, and / or the value range of the offset corresponding to the first period is determined by the length of the first period,

[0320] The first period includes a second period in the first measurement time configuration and / or a third period related to the first characteristic added in the first measurement time configuration.

[0321] As can be seen from the above embodiments, the terminal device performs the first processing related to cell access according to the first capability of the terminal device related to supporting downlink discontinuous transmission and / or long period SSB and / or the first information indicated by the network device, so that when the cell or the beam of the cell discontinuously transmits and / or configures the long period SSB, whether the terminal device supports the downlink discontinuous transmission and / or the long period SSB or not, the terminal device can be reasonably maintained, and problems such as failure of the terminal device to access the cell due to incompatibility between the capability of the terminal device and the configuration of the network device are avoided.

[0322] For example, the network device can indicate whether the cell or the beam of the cell discontinuously transmits and / or configures the long period SSB and / or whether the terminal device is allowed to access such a cell, and the network device can also flexibly adjust the configuration of the network device according to the capability report of the terminal device, and even whether to start the discontinuous transmission of the cell or the beam of the cell and / or configure the appropriate period length of the SSB, so that problems such as failure of the terminal device to access the cell are avoided in the case of discontinuous transmission of the cell or the beam of the cell and / or configuration of the long period SSB.

[0323] Embodiments of the fifth aspect

[0324] The embodiments of the present application provide an indication device for cell access, which is applied to a network device. Since the principle of solving the problem of the device is similar to the method of the embodiments of the second aspect, the specific implementation thereof can refer to the implementation of the method described in the embodiments of the second aspect, and the same or related contents will not be described repeatedly.

[0325] FIG. 13 is a schematic diagram of an indication device for cell access according to an embodiment of the present application. As shown in FIG. 13, the indication device 1300 for cell access includes:

[0326] a transmitter 1301 configured to send first information to a terminal device.

[0327] In the embodiments of the present application, the first information is used to indicate whether the cell is allowed to access, and / or the first information includes information related to the first characteristic, and the first characteristic includes downlink discontinuous transmission and / or long period SSB.

[0328] In the embodiments of the present application, whether the cell is allowed to access includes at least one of the following:

[0329] whether access of the first feature is allowed;

[0330] whether access of a feature other than the first feature is allowed;

[0331] whether access of a terminal device with a different first capability is allowed.

[0332] In an embodiment of the present application, the network device indicates whether access of the cell is allowed through a barring bit in the first information, the barring bit including a first barring bit and / or a second barring bit.

[0333] In an embodiment of the present application, the network device indicates whether access of the cell is allowed through the barring bit in the first information includes:

[0334] the network device indicates that access associated with the barring bit is barred for the cell by setting the barring bit as barred, or not configuring the barring bit; and / or,

[0335] the network device indicates whether access of a feature other than the first feature is barred for the cell, and / or whether access of a terminal device that does not support the first feature is barred for the cell, through the first barring bit; and / or the network device indicates that access associated with the barring bit is not barred for the cell by setting the barring bit as not barred; and / or,

[0336] the second barring bit is a barring bit related to the first feature, and the network device indicates whether access of the first feature is barred for the cell, and / or whether access of a terminal device that supports the first feature is barred for the cell, through the second barring bit.

[0337] In an embodiment of the present application, the information related to the first feature includes first access indication information and / or first configuration information;

[0338] For example, the first access indication information includes at least one of:

[0339] information indicating whether access of a feature other than the first feature is allowed for the cell;

[0340] information indicating whether access of the first feature is allowed for the cell;

[0341] information indicating whether access of a terminal device that does not support the first feature is allowed for the cell;

[0342] information indicating whether access of a terminal device that supports the first feature is allowed for the cell;

[0343] For example, the first configuration information includes at least one of:

[0344] indication information of whether the first feature is enabled in the cell;

[0345] configuration parameter information of the first feature.

[0346] In the embodiments of the present application, the transmitter further configures the first information according to the implementation of the network device, or

[0347] The transmitter further configures the first information according to the first capability reported by the terminal device, and the first capability includes the capability of whether the terminal device supports the first feature and / or the capability of the terminal device supporting the first feature.

[0348] In the embodiments of the present application, the transmitter configures the first information according to the first capability reported by the terminal device, including:

[0349] The transmitter requests or queries the first capability of the terminal device; and / or, the network device receives the first capability reported by the terminal device from the terminal device; and / or

[0350] The transmitter configures the first information matched with the first capability of the terminal device according to the first capability of the terminal device.

[0351] In the embodiments of the present application, the transmitter further sends second configuration information to the terminal device,

[0352] The second configuration information is used to configure a measurement time configuration for detecting SSB compatible with the first feature,

[0353] In the embodiments of the present application, the compatibility with the first feature includes:

[0354] Enhancing the domain definition or parameter description of the parameters related to the measurement time configuration to be compatible with the first feature, and / or,

[0355] The period of the measurement time window in the measurement time configuration is consistent with the period of the first feature, or the configuration of the period of the measurement time window in the measurement time configuration is only valid during the period when the cell or the beam of the cell can perform downlink transmission.

[0356] The measurement time configuration includes a first measurement time configuration and / or a second measurement time configuration.

[0357] In the embodiments of the present application, when the measurement time configuration includes the first measurement time configuration, the maximum value in the value range of the first period of the first measurement time configuration is greater than or equal to the period of the first feature of the cell or the beam of the cell, and / or the value range of the offset corresponding to the first period is determined by the length of the first period,

[0358] The first period includes a second period in the first measurement time configuration and / or a third period related to the first characteristic added in the first measurement time configuration.

[0359] As can be seen from the above embodiments, the network device indicates the first information to the terminal device for indicating whether the cell allows access and / or is related to the downlink discontinuous transmission and / or the long period SSB, so that when the cell or the beam of the cell discontinuously transmits and / or configures the long period SSB, whether the terminal device supporting the downlink discontinuous transmission and / or the long period SSB or the terminal device not supporting the downlink discontinuous transmission and / or the long period SSB can be reasonably maintained, and problems such as failure of the terminal device to access the cell due to incompatibility between the capability of the terminal device and the configuration of the network device are avoided.

[0360] For example, the network device can indicate whether the cell or the beam of the cell discontinuously transmits and / or configures the long period SSB, and / or indicate whether the terminal device is allowed to access such a cell, and the network device can also flexibly adjust the configuration of the network device according to the capability report of the terminal device, and even whether to start the discontinuous transmission of the cell or the beam of the cell and / or configure the appropriate period length of the SSB, so that problems such as failure of the terminal device to access the cell are avoided in the case of discontinuous transmission of the cell or the beam of the cell and / or configuration of the long period SSB.

[0361] Embodiments of the sixth aspect

[0362] The embodiments of the present application provide a terminal device, which comprises the apparatus for cell access according to the embodiments of the fourth aspect.

[0363] FIG. 14 is a schematic block diagram of the system structure of the terminal device according to the embodiments of the present application. As shown in FIG. 14, the terminal device 1400 can include a processor 1410 and a memory 1420; the memory 1420 is coupled to the processor 1410. It is worth noting that this figure is exemplary; other types of structures can also be used to supplement or replace this structure to implement telecommunication functions or other functions.

[0364] In one embodiment, the functions of the apparatus for cell access can be integrated into the processor 1410.

[0365] The processor 1410 is configured to: the terminal device receives the first information indicated by the network device; and the terminal device performs first processing according to the first capability of the terminal device and / or the first information, the first capability including the capability of the terminal device whether supporting the first characteristic and / or the capability of the terminal device supporting the first characteristic, the first characteristic including the downlink discontinuous transmission and / or the long period SSB, and the first processing being related to cell access.

[0366] In another embodiment, the apparatus for cell access can be configured separately from the processor 1410, for example, the apparatus for cell access can be configured as a chip connected with the processor 1410 to realize the functions of the apparatus for cell access through the control of the processor 1410.

[0367] As shown in FIG. 14, the terminal device 1400 can further include a communication module 1430, an input unit 1440, a display 1450, and a power supply 1460. It should be noted that the terminal device 1400 does not necessarily include all the components shown in FIG. 14, and can further include components not shown in FIG. 14, which can be referred to related art.

[0368] As shown in FIG. 14, the processor 1410, also sometimes referred to as a controller or operation control, can include a microprocessor or other processor device and / or logic device, which receives input and controls the operation of various components of the terminal device 1400.

[0369] The memory 1420, for example, can be one or more of a buffer, a flash memory, a hard drive, a removable media, a volatile memory, a non-volatile memory, or other suitable device. Various data can be stored, and programs for performing related information can also be stored. The processor 1410 can execute the programs stored in the memory 1420 to achieve information storage or processing, etc. The functions of other components are similar to the existing ones, and will not be described here. The components of the terminal device 1400 can be implemented by dedicated hardware, firmware, software, or a combination thereof, without departing from the scope of the present application.

[0370] As can be seen from the above embodiments, the terminal device performs first processing related to cell access according to its own first capability related to supporting downlink discontinuous transmission and / or long-period SSB and / or first information indicated by the network device, so that when the cell or the beam of the cell discontinuously transmits and / or configures the long-period SSB, whether the terminal device supports the downlink discontinuous transmission and / or the long-period SSB or not, the terminal device can be reasonably maintained, and problems such as failure of the terminal device to access the cell due to the capability of the terminal device and the configuration of the network device are avoided.

[0371] For example, the network device can indicate whether the terminal device cell or the cell beam has discontinuous transmission and / or is configured with a long period SSB, and / or indicate whether the terminal device is allowed to access such a cell, and the network device can also flexibly adjust the configuration of the network device according to the capability report of the terminal device, and even whether to start discontinuous transmission of the cell or the cell beam and / or configure the period length of the appropriate SSB, thereby avoiding problems such as failure of the terminal device to access the cell in the case of discontinuous transmission of the cell or the cell beam and / or configuration of the long period SSB.

[0372] Embodiments of the seventh aspect

[0373] Embodiments of the present application provide a network device, which comprises the indication apparatus for cell access according to the embodiments of the fifth aspect.

[0374] FIG. 15 is a schematic block diagram of the system structure of the network device according to an embodiment of the present application. As shown in FIG. 15, the network device 1500 can comprise a processor 1510 and a memory 1520; the memory 1520 is coupled to the processor 1510. The memory 1520 can store various data; in addition, it also stores a program 1530 for information processing, and executes the program 1530 under the control of the processor 1510 to receive various information sent by the terminal device and send various information to the terminal device.

[0375] In one embodiment, the function of the indication apparatus for cell access can be integrated into the processor 1510.

[0376] The processor 1510 can be configured to: the network device sends first information to the terminal device, the first information being used to indicate whether the cell is allowed to access, and / or the first information comprising information related to the first characteristic, the first characteristic comprising downlink discontinuous transmission and / or long period SSB.

[0377] In another embodiment, the indication apparatus for cell access can be configured separately from the processor 1510, for example, the indication apparatus for cell access can be configured as a chip connected with the processor 1510, and the function of the indication apparatus for cell access is realized through the control of the processor 1510.

[0378] In addition, as shown in FIG. 15, the network device 1500 can also comprise a transceiver 1540, an antenna 1550 and the like; wherein the functions of the above-mentioned components are similar to those of the prior art, and will not be described here. It is worth noting that the network device 1500 does not necessarily include all the components shown in FIG. 15; in addition, the network device 1500 can also include components not shown in FIG. 15, which can be referred to the prior art.

[0379] From the above embodiments, the network device indicates the terminal device with the first information for indicating whether the cell allows access and / or is related to the downlink discontinuous transmission and / or the long period SSB, so that when the cell or the beam of the cell discontinuously transmits and / or configures the long period SSB, whether the terminal device supporting the downlink discontinuous transmission and / or the long period SSB or the terminal device not supporting the downlink discontinuous transmission and / or the long period SSB can be reasonably maintained, and problems such as failure of the terminal device to access the cell caused by the capability of the terminal device and the configuration of the network device are avoided.

[0380] For example, the network device can indicate whether the cell or the beam of the cell discontinuously transmits and / or configures the long period SSB, and / or indicate whether the terminal device is allowed to access such a cell, and the network device can also flexibly adjust the configuration of the network device according to the capability report of the terminal device, and even whether to start the discontinuous transmission of the cell or the beam of the cell and / or configure the appropriate period length of the SSB, thereby avoiding problems such as failure of the terminal device to access the cell in the case of discontinuous transmission of the cell or the beam of the cell and / or configuration of the long period SSB.

[0381] Embodiments of the eighth aspect

[0382] Embodiments of the present application provide a communication system, which includes the terminal device according to the embodiments of the sixth aspect and / or the network device according to the embodiments of the seventh aspect. Specific contents can be referred to the description in the embodiments of the sixth aspect and the embodiments of the seventh aspect.

[0383] For example, the structure of the communication system can refer to FIG. 3. As shown in FIG. 3, the communication system 100 includes a network device 101 and a terminal device 102. The terminal device 102 can be the same as the terminal device described in the embodiments of the fifth aspect, and / or the network device 101 can be the same as the network device described in the embodiments of the sixth aspect. The repeated contents will not be described herein.

[0384] The above apparatus and method of the present application can be implemented by hardware, or by hardware in combination with software. The present application relates to a computer readable program which, when executed by a logic component, enables the logic component to implement the above-described apparatus or constituent components, or enables the logic component to implement the above-described various methods or steps. The logic component is, for example, a field programmable logic component, a microprocessor, a processor used in a computer, etc. The present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0385] The methods / apparatuses described in connection with the embodiments disclosed herein can be directly embodied in hardware, software executed by a processor, or a combination thereof. For example, one or more of the functional blocks shown in FIG. 12 and / or one or more combinations of the functional blocks can correspond to individual software modules of a computer program flow, or to individual hardware modules. The software modules can correspond to the individual steps shown in FIG. 4, respectively. The hardware modules can be implemented, for example, by using a field programmable gate array (FPGA) to hardwire the software modules.

[0386] The software modules can be stored in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, registers, a hard disk, a mobile disk, a CD-ROM, or any other form of storage medium known in the art. A storage medium can be coupled to the processor, such that the processor can read information from, and write information to, the storage medium; or the storage medium can be integral to the processor. The processor and the storage medium can be located in an ASIC. The software modules can be stored in the memory of the mobile terminal, or in a memory card that can be inserted into the mobile terminal. For example, if the device (e.g., the mobile terminal) uses a MEGA-SIM card or a large capacity flash memory device, the software modules can be stored in the MEGA-SIM card or the large capacity flash memory device.

[0387] One or more of the functional blocks shown in FIG. 12 and / or one or more combinations of the functional blocks can be implemented as a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any appropriate combination thereof, for performing the functions described herein. One or more of the functional blocks shown in FIG. 12 and / or one or more combinations of the functional blocks can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

[0388] The present application has been described in connection with certain embodiments. However, those skilled in the art will appreciate that modifications and variations to the described embodiments are possible, and that such modifications and variations are within the scope of the present application. Accordingly, the application is intended to embrace all such alternatives, modifications and variations.

[0389] According to the various embodiments disclosed herein, the following clauses are also disclosed:

[0390] 1. A method for cell access, the method being applied to a terminal device, the method comprising:

[0391] The terminal device sends information of a first capability of the terminal device to a network device;

[0392] The terminal device receives second information indicated by the network device; and

[0393] The terminal device performs a second processing according to the second information,

[0394] The first capability includes a capability of whether the terminal device supports a first feature and / or a capability related to the first feature supported by the terminal device,

[0395] The first feature includes downlink discontinuous transmission and / or long period SSB,

[0396] The second processing is related to cell access.

[0397] 2. The method according to append 1, wherein the second information includes at least one of:

[0398] Information allowing the terminal device to access the cell;

[0399] Information prohibiting the terminal device to access the cell;

[0400] Information indicating the terminal device to switch to another cell;

[0401] Information indicating the terminal device to reselect to another cell;

[0402] Information releasing the terminal device;

[0403] The cause indicating the switching or the reselecting or the releasing is related to a mismatch between the first capability of the terminal device and a requirement of the first feature of the cell or a beam of the cell.

[0404] 3. The method according to append 1 or 2, wherein the second processing includes at least one of:

[0405] Accessing the cell;

[0406] Measuring another cell;

[0407] Switching or reselecting to another cell.

[0408] 4. An indication method for cell access, the method is applied to a network device, the method includes:

[0409] The network device receives information of a first capability of a terminal device from the terminal device;

[0410] The network device sends second information to the terminal device according to the first capability of the terminal device,

[0411] The first capability includes a capability of whether the terminal device supports a first feature and / or a capability related to the first feature supported by the terminal device,

[0412] The first feature includes downlink discontinuous transmission and / or long period SSB,

[0413] The second information is used to indicate whether a cell allows access.

[0414] 5. The method according to append 4, wherein the second information includes at least one of:

[0415] Information allowing the terminal device to access the cell;

[0416] Information prohibiting the terminal device from accessing the cell;

[0417] Information indicating the terminal device to switch to another cell;

[0418] Information indicating the terminal device to reselect to another cell;

[0419] Information releasing the terminal device;

[0420] The cause of the switching or the reselection or the release is related to a mismatch between the first capability of the terminal device and a requirement of the first feature of the cell or a beam of the cell.

[0421] 6. The method according to append 4 or 5, wherein,

[0422] The network device indicates whether the cell allows access through a prohibit bit in the second information, the prohibit bit including a first prohibit bit and / or a second prohibit bit.

[0423] 7. The method according to append 6, wherein,

[0424] The network device indicates whether the cell allows access through a prohibit bit includes:

[0425] The network device indicates, through the first prohibit bit, whether the cell prohibits access of a feature other than the first feature and / or whether the cell prohibits access of the terminal device that does not support the first feature; and / or,

[0426] The second barred bit is a barred bit related to the first feature, and the network device indicates, by configuring the second barred bit, whether the cell bars access of the first feature and / or whether the cell bars access of the terminal device supporting the first feature.

[0427] 8. The method of clause 6, wherein,

[0428] The network device indicates, by the barred bit in the second information, whether the cell allows access including:

[0429] The network device indicates, by configuring the barred bit as barred or not configuring the barred bit, that the cell bars access associated with the barred bit; and / or

[0430] The network device indicates, by configuring the barred bit as notBarred, that the cell does not bar access associated with the barred bit.

Claims

An apparatus for cell access, the apparatus is applied to a terminal device, the apparatus comprises: a receiver configured to receive first information indicated by a network device; and a processor configured to perform first processing according to a first capability of the terminal device and / or the first information, the first capability comprises a capability of whether the terminal device supports a first feature and / or a capability related to the first feature supported by the terminal device, the first feature comprises a downlink discontinuous transmission and / or a long period SSB, the first processing is related to cell access. According to the apparatus of claim 1, wherein the first information is used to indicate whether the cell allows access, and / or the first information comprises information related to the first feature. According to the apparatus of claim 1, wherein the first information is indicated by at least one of a MIB, a SIB, a dedicated RRC message, a MAC CE and a DCI. According to the apparatus of claim 2, wherein whether the cell allows access comprises at least one of: whether the access of the first feature is allowed; whether the access of a non-first feature is allowed; whether the access of a terminal device with a different first capability is allowed, and / or the network device indicates whether the cell allows access by a prohibit bit in the first information, the prohibit bit comprises a first prohibit bit and / or a second prohibit bit. According to the apparatus of claim 4, wherein for the terminal device supporting the first feature and / or determining that the access is the access of the first feature, the first prohibit bit is ignored, and / or the second prohibit bit is a prohibit bit associated with the first feature, the second prohibit bit is used to indicate whether the cell prohibits the access of the first feature, and / or whether the cell prohibits the access of the terminal device supporting the first feature. The apparatus of claim 2, wherein The information related to the first feature comprises first access indication information and / or first configuration information; the first access indication information comprises at least one of: information indicating whether the cell allows the access of a non-first feature; information indicating whether the cell allows the access of the first feature; information indicating whether the cell allows the access of the terminal device not supporting the first feature; information indicating whether the cell allows the access of the terminal device supporting the first feature; and / or the first configuration information comprises at least one of: indication information of whether the cell starts the first feature; configuration parameter information of the first feature. According to the apparatus of claim 1, wherein the downlink discontinuous transmission is a cell-level downlink discontinuous transmission, or the downlink discontinuous transmission is a beam-level downlink discontinuous transmission of a cell, and / or the long period SSB is a long period SSB of a cell, or the long period SSB is a long period SSB of a beam of a cell. The period of the long-period SSB is a period in which the network device configures or transmits SSBs and / or a period of SSBs assumed by the terminal device in an initial cell selection process, and / or the period of the long-period SSB is associated with a mode of downlink discontinuous transmission, and / or the period in which the network device configures or transmits SSBs is greater than 160 ms and / or the period of SSBs assumed by the terminal device in the initial cell selection process is greater than 20 ms. The apparatus of claim 1, wherein The first processing includes at least one of the following: determining whether the cell starts the first feature; determining whether the cell allows the terminal device to access; determining whether the current access is access of the first feature; accessing the cell; measuring other cells; switching or reselecting to other cells. The apparatus of claim 1, wherein The processor performs first processing according to the first capability of the terminal device and / or the first information, including: The processor determines whether the cell can be accessed according to first access indication information in the first information and the first capability of the terminal device; or The processor determines whether the cell can be accessed according to first configuration information in the first information and the first capability of the terminal device. According to the apparatus of claim 1, wherein The receiver further receives second configuration information from the network device, The second configuration information is used to configure a measurement time configuration for detecting SSBs compatible with the first feature. According to the apparatus of claim 10, wherein Compatibility with the first feature includes: enhancing the domain definition or parameter description of the parameters related to the measurement time configuration to be compatible with the first feature, and / or The period of the measurement time window in the measurement time configuration is consistent with the period of the first feature, or the configuration of the period of the measurement time window in the measurement time configuration only takes effect during a period in which the cell or the beam of the cell can perform downlink transmission, The measurement time configuration includes first measurement time configuration and / or second measurement time configuration. According to the apparatus of claim 11, wherein When the measurement time configuration includes first measurement time configuration, the maximum value in the value range of the first period of the first measurement time configuration is greater than or equal to the period of the first feature of the cell or the beam of the cell, and / or the value range of the offset corresponding to the first period is determined by the length of the first period, The first period includes a second period in the first measurement time configuration and / or a third period related to the first feature added in the first measurement time configuration. An indication apparatus for cell access, the apparatus is applied to a network device, the apparatus includes: a transmitter that transmits first information to a terminal device, The first information is used to indicate whether a cell allows access, and / or the first information includes information related to a first feature, The first feature includes downlink discontinuous transmission and / or long-period SSB. According to the apparatus of claim 13, wherein Whether the cell allows access includes at least one of the following: whether to allow access of the first feature; whether to allow access of a terminal device not supporting the first feature; whether to allow access of a terminal device not supporting the first feature, and / or, the network device indicates whether the cell allows access through a bar bit in the first information, the bar bit including a first bar bit and / or a second bar bit. The apparatus according to claim 14, wherein the network device indicates whether the cell allows access through the bar bit in the first information includes: the network device indicates that the cell bars access associated with the bar bit by setting the bar bit as barred, or not configuring the bar bit; and / or the network device indicates that the cell does not bar access associated with the bar bit by setting the bar bit as notBarred; and / or, the network device indicates, through the first bar bit, whether the cell bars access of a terminal device not supporting the first feature, and / or whether the cell bars access of a terminal device not supporting the first feature; and / or, the second bar bit is a bar bit related to the first feature, and the network device indicates, through the second bar bit, whether the cell bars access of the first feature, and / or whether the cell bars access of a terminal device supporting the first feature. The apparatus according to claim 13, wherein the information related to the first feature includes first access indication information and / or first configuration information; the first access indication information includes at least one of: information indicating whether the cell allows access of a terminal device not supporting the first feature; information indicating whether the cell allows access of a terminal device supporting the first feature; information indicating whether the cell allows access of a terminal device not supporting the first feature; information indicating whether the cell allows access of a terminal device supporting the first feature; and / or, the first configuration information includes at least one of: indication information of whether the cell enables the first feature; configuration parameter information of the first feature. The apparatus according to claim 13, wherein the transmitter further configures the first information according to an implementation of the network device, or the transmitter further configures the first information according to a first capability reported by the terminal device, the first capability including a capability of whether the terminal device supports the first feature and / or a capability related to the first feature supported by the terminal device. The apparatus of claim 17, wherein The transmitter configures the first information according to the first capability reported by the terminal device includes: the transmitter requests or queries the first capability of the terminal device; and / or the network device receives the first capability reported by the terminal device from the terminal device; and / or the transmitter configures the first information matching the first capability of the terminal device according to the first capability of the terminal device. The apparatus according to claim 13, wherein the transmitter further sends second configuration information to the terminal device, The second configuration information is used to configure a measurement time configuration for detecting SSBs compatible with the first characteristic, and / or, Compatibility with the first characteristic includes: Enhancing the domain definition or parameter description of parameters related to the measurement time configuration to be compatible with the first characteristic, and / or, The period of a measurement time window in the measurement time configuration is consistent with the period of the first characteristic, or the configuration of the period of the measurement time window in the measurement time configuration only takes effect during the period when the cell or the beam of the cell is capable of downlink transmission, The measurement time configuration includes a first measurement time configuration and / or a second measurement time configuration. The apparatus according to claim 19, wherein, When the measurement time configuration includes the first measurement time configuration, the maximum value in the value range of the first period of the first measurement time configuration is greater than or equal to the period of the first characteristic of the cell or the beam of the cell, and / or the value range of the offset corresponding to the first period is determined by the length of the first period, The first period includes a second period in the first measurement time configuration and / or a third period related to the first characteristic added in the first measurement time configuration.

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